Internal-combustion engine.



P. OKPY.

v` INTERNAL GOMBUSTION ENGINE.

APPLICATION FILED MAR. 5, 1910.

4 Patented Mar. 28, 1911.

F E l A 'wuantoz' Perry ey nit? orario PERRY GREY, GF COLUMBUS, OHIO,ASSIGNOR F ONE-HALF T()v SARAH LOUISE OKEY, OF COLUMBUS, OHIO.

INTERNAL-COMBUSTIGN ENGINE.

scemi.

Specification of Letters Patent.

Patented Mar. 28, 1911.

Application iled March 5, 1910. Serial No. 547,468.

The object of the invention is the .pro-v vision of improved means forsupport-ing the crank shaft, for packing the crank shaft againstleakage, and tor increasing the compression by cutting off the variouscompartments of the crank case froml each other, by

means of packing disposed between the cylinders of multiple cylinderengines, as will be hereinafter set'forth.

'Further objects and advantages of the in,- vention will be set forth inthe detailed description which now follows:

ln the accompanying drawing, Figure 1 'i is a partial sectional View,illustrating the method of mounting the crank shaft of aA multiplecylinder two cycle engine, the pistons and connecting rods beingomitted.v Fig. 2 is a. partial vertical section upon line 2 2 of Fig. l,Fig. 8 is an edge view of a packing ring employed, and, Fig. 4 is a sideelevation of said packing ring.

Like numerals designate corresponding parts in all of the figures of thedrawing.

Referring to the drawing, the numerals 5 and 6 designate the cylindersof a two cycle internal combustion engine. The crank shaft 7 comprisescrank disks 8, 9, and 10.

between which the crank pins 11 and l2 are located. A key 13 secures afly wheel 14 in position upon the shaft and a nut 15 aids in retainingboth the ly wheel andthe key in position. Housings 16 and 17 are securedin position by bolts 18. The housings are cutout at 19 and 20 for thereception of the ball race containing members 21, which together withthe ball race containing members 22 and balls provide ball bearings forthe. shaft. Mounted upon the crank shaft 7, outside of the ballbearings, are collars 24 and 25, said collars being keyed upon theshaft, or pinched between the nuts 26 and 27, and the inner ball races22, with suicient pressure to compel the collars to rotate with theshaft. The crank disks 8, 9 and 10 are all of substantially'the samediameter, and it is apparent that the crank case-may be bored outlongitudinally, the opening between the cylinders being of the samediameter as the openings of the crank case. 'The central disk 9 is`annularly grooved' at 28 for the reception of la split ring 29.Thisring is sprung into position Within the bore 30 of the Wall thatdivides the cylinders,v and said ring floats in the groove 28.Corresponding rings 3l and 32 are located in grooves formed in thecollars' 24 and 25. The rings 3l and 32 etfectually prevent leakage fromthe ends of the crank case, and the ring 28 prevents leakage of thecombustible charge from one side of the crank disk 9 tothe other. Thevarious portions of the crank case are thus etlectually cut 'olffrom-each other without the employment Aofxintermediate bearings,whereby a. great` savlng in the -cost of construction is secured.`

From the foregoing description, it will be' seen that simple andeiiicient means are here'-l in provided for accomplishing the objects ofthe invention, but while the elements shown and described are welladapted to serve the purposes for which they are intended, it is to beunderstood that the invention is not limited to the precise constructionset forth, but includes Within its purview such changes as'fcmay be madewithin the scope of the appended claims. I

Having described my invention, what I claim is:

In a multiple cylinder engine, the combination' with a body portiondivided into a plurality of cylinders and al crank case, of a crankshaft comprising a plurality of crank disks of equal diameter., littingwithin said crank case, one of said disks'being located between two ofthe cylinders and having a peripheral groove, a resilient packing ringttllgwthn said groove and engaging the mle pepheml Wall of the Crankcase between said Cylinders, the dametel of said Gmnk c-Lse being thesame about each of said crank disks, whereby said crank case may bebowed 'ffm the reception of all of Said disks at one operation L1testimony whereof Hifi my signatur@ 1n presence 0i two Wltuesses.

H. P. CHANDLER, 0,. P. BEAGH.

